Home / 1,291,219.88-1,938,043.28-676,165.30

Finding the Fourth Proportional to 1,291,219.88, 1,938,043.28 and 676,165.30

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Solution

The fourth proportional to 1,291,219.88, 1,938,043.28 and 676,165.30 is: 1,014,883.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,219.88 : 1,938,043.28 = 676,165.30 : x
  2. Step 2: Convert to fraction form
    1,291,219.88/1,938,043.28 = 676,165.30/x
  3. Step 3: Cross multiply
    1,291,219.88x = 1,938,043.28 × 676,165.30
  4. Step 4: Simplify right side
    1,291,219.88x = 1,310,437,615,834.18
  5. Step 5: Solve for x
    x = 1,310,437,615,834.18/1,291,219.88
  6. Step 6: Final answer
    x = 1,014,883.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.